//
//  WBVisitorView.swift
//  仿微博
//
//  Created by apple on 2016/12/19.
//  Copyright © 2016年 apple. All rights reserved.
//

import UIKit

class WBVisitorView: UIView {
    ///注册按钮
     lazy var registerButton: UIButton = UIButton.cz_textButton(
        "注册",
        fontSize: 16,
        normalColor: UIColor.orange,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    ///登录按钮
    
     lazy var loginButton: UIButton = UIButton.cz_textButton(
        "登录",
        fontSize: 16,
        normalColor: UIColor.darkGray,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")
    
    
    

    ///使用字典设置访客视图的信息  [imageName/message]
    ///  如果首页 imageName = “”
    var visitorInfo: [String: String]?{
        didSet{
            ///1.取字典信息
            guard let imageName = visitorInfo?["imageName"],
                let message = visitorInfo?["message"] else {
                    return
            }
            
            ///2.设置消息
            tipLable.text = message
            ///3.设置图像，首页不需要设置
            if imageName == "" {
                starAnimation()
                return
            
            }
        iconView.image = UIImage(named: imageName)
        //其他控制器的访客视图不需要显示小房子/遮罩视图
            houseView.isHidden = true
            maskIconView.isHidden = true
            
        }
    
    }
    
    
     /// MARK: - 构造函数
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
    /// 旋转图标动画
    fileprivate func starAnimation() {
    let anmi = CABasicAnimation(keyPath: "transform.rotation")
        anmi.toValue = 2 * M_PI
        anmi.repeatCount = MAXFLOAT
        anmi.duration = 15
        //动画完成不删除， 如果  iconView 被释放，动画会一起销毁！
        //在设置连续播放的动画非常有用！
        anmi.isRemovedOnCompletion = false
      // MARK: - 动画添加到图层
        iconView.layer.add(anmi, forKey: nil)
    
    
    }
   
    
    
        // MARK: - 私有控件
    ///懒加载属性只有调用  UIKit 控件的制定构造函数， 其他都需要使用类型
    
    ///图像视图
    fileprivate lazy var iconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
//    遮罩视图
    fileprivate lazy var maskIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    ///小房子
     fileprivate lazy var houseView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    ///提示标签
    fileprivate lazy var tipLable: UILabel = UILabel.cz_label(withText: "关注一些人, 回这里看看有什么惊喜!",
                                                          fontSize: 14,
                                                          color: UIColor.darkGray)
    



    
}

// MARK: - 设置界面
extension WBVisitorView {
   func setupUI() {
    
    backgroundColor = UIColor.cz_color(withHex: 0xEDEDED)
    
    
    
    //1.添加控件
    addSubview(iconView)
    addSubview(maskIconView)
    addSubview(houseView)
    addSubview(tipLable)
    addSubview(registerButton)
    addSubview(loginButton)
    tipLable.textAlignment = .center
    //2.取消 autoresizing
    for v in subviews {
        v.translatesAutoresizingMaskIntoConstraints = false
    }
    
    //3. 自动布局
    addConstraint(NSLayoutConstraint(item: iconView,
                                     attribute: .centerX,
                                     relatedBy: .equal,
                                     toItem: self,
                                     attribute: .centerX,
                                     multiplier: 1.0,
                                     constant: 0))
    addConstraint(NSLayoutConstraint(item: iconView,
                                     attribute: .centerY,
                                     relatedBy: .equal,
                                     toItem: self,
                                     attribute: .centerY,
                                     multiplier: 1.0,
                                     constant: -60))
//    2.>小房子
    addConstraint(NSLayoutConstraint(item: houseView,
                                     attribute: .centerX,
                                     relatedBy: .equal,
                                     toItem: iconView,
                                     attribute: .centerX,
                                     multiplier: 1.0,
                                     constant: 0))
    addConstraint(NSLayoutConstraint(item: houseView,
                                     attribute: .centerY,
                                     relatedBy: .equal,
                                     toItem: iconView,
                                     attribute: .centerY,
                                     multiplier: 1.0,
                                     constant: 0))
    //    3.>提示标签
    let margin: CGFloat = 20.0
    addConstraint(NSLayoutConstraint(item: tipLable,
                                     attribute: .centerX,
                                     relatedBy: .equal,
                                     toItem: iconView,
                                     attribute: .centerX,
                                     multiplier: 1.0,
                                     constant: 0))
    addConstraint(NSLayoutConstraint(item: tipLable,
                                     attribute: .top,
                                     relatedBy: .equal,
                                     toItem: iconView,
                                     attribute: .bottom,
                                     multiplier: 1.0,
                                     constant: margin))
    
    addConstraint(NSLayoutConstraint(item: tipLable,
                                     attribute: .width,
                                     relatedBy: .equal,
                                     toItem: nil,
                                     attribute: .notAnAttribute,
                                     multiplier: 1.0,
                                     constant: 236))
    

    
    //    4.>注册
    addConstraint(NSLayoutConstraint(item: registerButton,
                                     attribute: .left,
                                     relatedBy: .equal,
                                     toItem: tipLable,
                                     attribute: .left,
                                     multiplier: 1.0,
                                     constant: 0))
    addConstraint(NSLayoutConstraint(item: registerButton,
                                     attribute: .top,
                                     relatedBy: .equal,
                                     toItem: tipLable,
                                     attribute: .bottom,
                                     multiplier: 1.0,
                                     constant: margin))
    addConstraint(NSLayoutConstraint(item: registerButton,
                                     attribute: .width,
                                     relatedBy: .equal,
                                     toItem: nil,
                                     attribute: .notAnAttribute,
                                     multiplier: 1.0,
                                     constant: 100))
    
//
//    //    5.>登录
    addConstraint(NSLayoutConstraint(item: loginButton,
                                     attribute: .right,
                                     relatedBy: .equal,
                                     toItem: tipLable,
                                     attribute: .right,
                                     multiplier: 1.0,
                                     constant: 0))
    addConstraint(NSLayoutConstraint(item: loginButton,
                                     attribute: .top,
                                     relatedBy: .equal,
                                     toItem: tipLable,
                                     attribute: .bottom,
                                     multiplier: 1.0,
                                     constant: margin))
    addConstraint(NSLayoutConstraint(item: loginButton,
                                     attribute: .width,
                                     relatedBy: .equal,
                                     toItem: registerButton,
                                     attribute: .width,
                                     multiplier: 1.0,
                                     constant: 0))
    
 //    6.> 遮罩视图
    //views: 定义  VFL 中的控件名称和实际名称映射关系
    //metrics： 定义中 VFL 中（） 指定的常数映射关系
    let viewDict: [String : Any] = ["maskIconView": maskIconView,
                    "registerButton": registerButton]
    let metrics = ["spacing": -20]
    addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-0-[maskIconView]-0-|",
                                                  options: [],
                                                  metrics: nil,
                                                  views: viewDict))
    addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-0-[maskIconView]-(spacing)-[registerButton]",
                                                  options: [],
                                                  metrics: metrics,
                                                  views: viewDict))
    
    }


}
